# reactionCustomEmoji

> Custom emoji message reaction

[Back to constructors index](/API_docs/constructors/index.html)



[Custom emoji](https://core.telegram.org/api/custom-emoji) message reaction

### Attributes:

| Name     |    Type       | Required | Description |
|----------|---------------|----------|-------------|
|document\_id|[long](/API_docs/types/long.html) | Yes|[Custom emoji document ID](https://core.telegram.org/api/custom-emoji)|



### Type: [Reaction](/API_docs/types/Reaction.html)


### Example:

```
$reactionCustomEmoji = ['_' => 'reactionCustomEmoji', 'document_id' => long];
```